CN106291959A - A kind of virtual display floater and display device - Google Patents
A kind of virtual display floater and display device Download PDFInfo
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- CN106291959A CN106291959A CN201610930981.9A CN201610930981A CN106291959A CN 106291959 A CN106291959 A CN 106291959A CN 201610930981 A CN201610930981 A CN 201610930981A CN 106291959 A CN106291959 A CN 106291959A
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- 239000004973 liquid crystal related substance Substances 0.000 claims description 7
- 210000004556 brain Anatomy 0.000 abstract description 5
- 230000000007 visual effect Effects 0.000 abstract description 3
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- 230000009286 beneficial effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
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- 230000004075 alteration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 230000003287 optical effect Effects 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
- G02B5/045—Prism arrays
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/34—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers
- G02B30/36—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers using refractive optical elements, e.g. prisms, in the optical path between the images and the observer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133504—Diffusing, scattering, diffracting elements
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/13356—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements
- G02F1/133562—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements on the viewer side
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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- Crystallography & Structural Chemistry (AREA)
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Abstract
The invention discloses a kind of virtual display floater and display device, including: collimation light display structures, it is arranged at the light direction structure on the exiting surface of collimation light display structures.Collimation light display structures is respectively used to the collimated beam showing the first or second viewing area outgoing of left eye or right eye reception image after light direction structure orientation deviation, directive left eye set in advance or right eye viewing location, make the virtual image being presented on left eye or right eye be positioned at the incident side of collimation light display structures.The position of human eye set is pointed to owing to light direction structure can accurately control light beam, and the virtual image making human eye see moves relative to after real image, be conducive in the case of closely observing and seeing, the virtual image making eyes each watch merges in the brain, it is achieved the stereoscopic visual effect of the nearly virtual display of eye.Further, owing to using light direction structure to substitute existing thick and heavy plus lens structure, virtual display, therefore, the slimming that the most virtual display floater is overall are realized.
Description
Technical Field
The invention relates to the technical field of virtual display, in particular to a virtual display panel and a display device.
Background
The existing flat virtual display panel is realized by respectively arranging two positive lenses 2 in a left eye display area a and a right eye display area B in front of a display screen 1 as shown in fig. 1, and the focal length of the positive lens 2 needs to be larger than the distance from the display screen 1 to the positive lens 2, so that the positive lens 2 plays a role of a magnifier. The principle of the positive lens 2 is as shown in fig. 2, and the image y displayed on the display screen 1 passes through the positive lens 2, so that the two eyes can respectively see the magnified upright virtual image y 'and the magnified upright virtual image y' is merged in the brain, thereby generating stereoscopic vision.
Two positive lenses 2 are needed in the above manner for realizing the flat virtual display, the positive lenses 2 are relatively thick and heavy, and the positive lenses 2 can introduce optical aberration as a single lens, so that the virtual display device can cause a viewer to feel uncomfortable no matter the virtual display device is worn or displayed on a picture, and is not beneficial to near-eye viewing, i.e. human eyes can view near.
Therefore, how to display a flat virtual image without using a positive lens is an urgent technical problem to be solved in the art.
Disclosure of Invention
Embodiments of the present invention provide a virtual display panel and a display device, which are used to implement a flat virtual image display viewed by near-eye.
Therefore, an embodiment of the present invention provides a virtual display panel, including: the collimated light display structure is arranged on the light emitting surface of the collimated light display structure; wherein,
the display area of the collimated light display structure is divided into: a first display region for displaying a left-eye received image, and a second display region for displaying a right-eye received image;
the part of the light directing structure corresponding to the first display area is used for directionally deflecting the collimated light beams emitted by the first display area and then directing the collimated light beams to a preset left eye viewing position, so that a virtual image presented on a left eye is positioned on the light incident side of the collimated light display structure;
the part of the light directing structure corresponding to the second display area is used for directionally deflecting the collimated light beams emitted by the second display area and then directing the collimated light beams to a preset right eye viewing position, so that a virtual image presented to the right eye is positioned on the light incident side of the collimated light display structure.
In a possible implementation manner, in the above virtual display panel provided in the embodiment of the present invention, every at least two physical pixels included in the collimated light display structure constitute display content of one virtual pixel.
In a possible implementation manner, in the above virtual display panel provided by the embodiment of the present invention, every three physical pixels arranged in a delta shape constitute the display content of one virtual pixel.
In a possible implementation manner, in the virtual display panel provided in the embodiment of the present invention, the light directing structure is formed by a plurality of right-angle prisms arranged in an array, one physical pixel corresponds to at least one of the right-angle prisms, and one right-angle edge of each of the right-angle prisms is in contact with the light exit surface of the collimating light display structure.
In one possible implementation manner, in the virtual display panel provided in the embodiment of the present invention, a slope angle of each of the right-angle prisms satisfies the following formula, α ═ θ2-θ1，nsinθ1＝sinθ2；
Wherein, theta1The included angle between the plane where the hypotenuse of the right-angle prism is located and the light-emitting surface of the collimated light display structure is α, the angle of the collimated light beam is in directional deflection, and theta2The included angle is formed between the collimated light beam passing through the plane where the hypotenuse of the right-angle prism is located and the normal line of the plane where the hypotenuse of the right-angle prism is located.
In a possible implementation manner, in the above virtual display panel provided in an embodiment of the present invention, the collimated light display structure includes: the light adjusting structure comprises a collimation backlight source and a light adjusting structure arranged on the light emitting side of the collimation backlight source.
In a possible implementation manner, in the virtual display panel provided in the embodiment of the present invention, collimated light emitted from the collimated backlight source enters perpendicular to the plane where the light adjusting structure is located.
In a possible implementation manner, in the virtual display panel provided in the embodiment of the present invention, the light adjusting structure is a liquid crystal display panel.
In a possible implementation manner, in the above virtual display panel provided in an embodiment of the present invention, the collimated light display structure includes: the plane display panel, and set up in the collimation structure of plane display panel light-emitting side, the collimation structure be used for with the light collimation that plane display panel sent.
In a possible implementation manner, in the above virtual display panel provided in the embodiment of the present invention, collimated light emitted by the collimating structure is perpendicular to a plane of the planar display panel.
In a possible implementation manner, in the virtual display panel provided in the embodiment of the present invention, the planar display panel is any one of an electroluminescent display panel, a plasma display panel, or an electronic paper.
On the other hand, the embodiment of the invention also provides a display device, which comprises the virtual display panel provided by the embodiment of the invention.
The embodiment of the invention has the beneficial effects that:
the embodiment of the invention provides a virtual display panel and a display device, comprising: the collimated light display structure is arranged on the light emitting surface of the collimated light display structure. The display area of the collimated light display structure is divided into: a first display region for displaying a left-eye received image, and a second display region for displaying a right-eye received image; collimated light beams emitted from the first display area are directionally deflected by the light directing structure and then are emitted to a preset left eye viewing position, so that a virtual image presented on a left eye is positioned on the light incident side of the collimated light display structure; the collimated light beams emitted from the second display area are directionally deflected by the light directing structure and then are emitted to a preset right eye viewing position, so that a virtual image presented to the right eye is positioned on the light incident side of the collimated light display structure. The light pointing structure can accurately control the light beam to point to the set eye position, and the virtual image seen by the eyes moves backwards relative to the actual image displayed by the collimated light display structure, so that the virtual images respectively seen by the two eyes are fused in the brain under the condition that the eyes are close to the collimated light display structure, and the stereoscopic vision effect of near-eye flat plate virtual display is realized. In addition, the light direction structure arranged on the light emergent surface of the collimated light display structure is adopted to replace the prior thick positive lens structure to realize virtual display, so that the whole virtual display panel is favorably thinned.
Drawings
FIG. 1 is a schematic diagram of a prior art virtual display panel;
FIG. 2 is a schematic diagram of a virtual imaging of a prior art virtual display panel;
FIG. 3 is a schematic structural diagram of a virtual display panel according to an embodiment of the present invention;
fig. 4a and fig. 4b are schematic structural diagrams of a virtual display panel according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a right-angle prism in a virtual display panel according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a virtual imaging of a virtual display panel according to an embodiment of the present invention;
fig. 7 is a schematic diagram illustrating an arrangement distribution of physical pixels in a virtual display panel according to an embodiment of the present invention.
Detailed Description
The following describes in detail specific embodiments of a virtual display panel and a display device according to embodiments of the present invention with reference to the accompanying drawings.
The thickness of each layer of film and the size and shape of the area in the drawings do not reflect the real scale of the virtual display panel, and are only for the purpose of schematically illustrating the present invention.
An embodiment of the present invention provides a virtual display panel, as shown in fig. 3, including: a collimated light display structure 100, a light directing structure 200 disposed on a light exit surface of the collimated light display structure 100; wherein,
the display area of the collimated light display structure 100 is divided into: a first display region a for displaying a left-eye received image, and a second display region b for displaying a right-eye received image;
the light directing structure 200 is configured to deflect the collimated light beam emitted from the first display region a in a directional manner and then emit the collimated light beam to a preset left-eye viewing position, so that a virtual image displayed on a left eye is located on the light incident side of the collimated light display structure 100;
the light directing structure 200 is configured to deflect the collimated light beam emitted from the second display area b to a preset right-eye viewing position after being directionally deflected, so that a virtual image presented to the right eye is located on the light incident side of the collimated light display structure 100.
Specifically, in the virtual display panel provided in the embodiment of the present invention, the light directing structure 200 can precisely control the light beam to direct to the set eye position, and the virtual image viewed by the eye moves backward with respect to the actual image displayed by the collimated light display structure 100, which is beneficial to fusing the virtual images viewed by the two eyes in the brain under the condition that the eye is at a short distance with respect to the collimated light display structure, so as to achieve the stereoscopic effect of near-eye flat virtual display. In addition, the light directing structure 200 disposed on the light emitting surface of the collimated light display structure 100 is used to replace the conventional thick positive lens structure to realize the virtual display, which is beneficial to the thinning of the entire virtual display panel.
It should be noted that, in actual operation, the viewing positions of the left and right eyes in front of the collimated light display structure are generally set according to the distribution of the left and right eyes of the viewer, that is, the size of the interpupillary distance, and therefore, the preset viewing positions of the left and right eyes can be generally determined according to the above features. Also, since in the near-eye display field such as a virtual reality (VRAR) head-mounted display device, the distance between the human eye and the screen is generally fixed and the relative position does not change, and the viewer is generally positioned directly in front of the virtual display panel, the first display region a and the second display region b are generally symmetrically distributed. Furthermore, because the collimated light beams emitted from the first (second) display regions a (b) can be directionally deflected and directed to the preset left (right) eye viewing position according to the action of the light directing structure 200, the first display region a and the second display region b can be arranged in various ways, for example, as shown in fig. 3, the first display region a and the second display region b can divide the display region into two parts which are symmetrical left and right; the first display area a and the second display area b may be alternatively disposed in the whole display area, similar to the arrangement of a black-and-white chessboard, which is not limited herein. In the following, the first display area a and the second display area b will be described as an example in which the display area is divided into two bilaterally symmetrical portions.
In practical implementation, in the above virtual display panel provided in the embodiment of the present invention, there are various implementations of the collimated light display structure 100 for providing a collimated light beam. For example, as shown in fig. 4a, the collimated light display structure 100 may specifically include: the light adjusting structure 120 can adjust the brightness of the emitted light, and has a display function, but the propagation direction of the light is not changed, i.e., the light emitted from the light adjusting structure 120 is still collimated light.
Preferably, in a specific implementation, in order to achieve a better virtual display effect, the collimated light emitted from the collimated backlight 110 generally needs to be incident perpendicular to the plane of the light adjusting structure 120, and certainly, in an actual operation, an offset angle may be set to be incident to the plane of the light adjusting structure 120, which is not limited herein.
Further, in the virtual display panel provided in the embodiment of the present invention, the light adjusting structure 120 may be implemented in various ways, for example, as shown in fig. 4a, the light adjusting structure 120 may be implemented by a liquid crystal display panel, and the liquid crystal display panel may adjust the brightness of the light to perform display. The liquid crystal display panel may specifically include: a lower polarizer 121, a lower substrate 122, a liquid crystal layer 123, an upper substrate 124, an upper polarizer 125, and the like. Alternatively, the light adjusting structure 120 may further include a component such as an electrochromic material or a controllable baffle to achieve the function of adjusting the brightness of the emitted light, which is not limited herein.
In a specific implementation manner, in the above virtual display panel provided in the embodiment of the present invention, as shown in fig. 4b, in another implementation manner of the collimated light display structure 100 for providing a collimated light beam, the collimated light display structure 100 may specifically include: the flat display panel 130, and the collimating structure 140 disposed at the light-emitting side of the flat display panel 130, wherein the collimating structure 140 is used for collimating the light emitted from the flat display panel 130.
Preferably, in the virtual display panel provided in the embodiment of the present invention, in order to achieve a better virtual display effect, the collimated light emitted through the collimating structure 140 generally needs to be perpendicular to the plane of the flat display panel 130, and certainly, in an actual operation, an offset angle may be set to emit from the plane of the flat display panel, which is not limited herein.
In a specific implementation, in the above virtual display panel provided in the embodiment of the present invention, the flat display panel 130 may be implemented in various ways, for example, any one of an electroluminescent display panel, a plasma display panel, or electronic paper, which is not limited herein. Of course, the flat display panel 130 may also adopt a combination of a liquid crystal display panel and a backlight module, which is not limited herein.
In practical implementation, in the above-mentioned virtual display panel provided in the embodiment of the present invention, the light directing structure 200 is used to directionally deflect the collimated light beam to a preset single-eye (left-eye or right-eye) viewing position. For example, as shown in fig. 3, the light directing structure 200 may be formed by a plurality of right-angle prisms arranged in an array, and one physical pixel in the collimated light display structure 100 corresponds to at least one right-angle prism, and one right-angle edge of each right-angle prism is in contact with the light exit surface of the collimated light display structure 100. It can be understood that the right-angle prism is simpler in manufacturing method than the lens, and lighter and thinner in structure than the lens, which is beneficial to realizing the lightness and thinness of the whole device and reducing the cost.
Preferably, one physical pixel (i.e. one actual sub-pixel) corresponds to one rectangular prism, and in order to ensure that the light rays emitted by at least two physical pixels have an intersection point between opposite extensions of the light rays refracted by the prism, the virtual pixel can be seen by human eyes, so that the rectangular prism corresponding to each physical pixel has different size parameters. The following description is given by taking an example in which one physical pixel corresponds to one rectangular prism.
In practical implementation, in the above-mentioned virtual display panel provided by the embodiment of the present invention, each right-angle prism constituting the light directing structure 200 controls the directional refraction of the collimated light beam according to the principle of the law of refraction to ensure that the collimated light beam can be accurately incident to the eye, and as shown in fig. 5, the slope angle of each right-angle prism satisfies the following formula, α ═ θ2-θ1，nsinθ1＝sinθ2；
Wherein, theta1Is the slope angle of the right-angle prism, i.e. the included angle between the plane where the hypotenuse of the right-angle prism is located and the light-emitting surface of the collimated light display structure, and is also the incident angle of the collimated light beam relative to the slope surface, α is the angle of the directional deflection of the collimated light beam, theta2The included angle between the plane where the collimated light beam passes through the hypotenuse of the right-angle prism and the normal of the plane where the hypotenuse of the right-angle prism is located, namely the refraction angle of the collimated light beam after passing through the slope surface of the right-angle prism.
In actual operation, according to different deflection angles α required for the emergent light of different physical pixels to reach human eyes, the slope angle θ of the right-angle prism corresponding to each physical pixel can be calculated1. The inclination direction of the slope of each rectangular prism is determined specifically according to the position of the human eye to be set, and is only schematically illustrated in the figure.
In practical implementation, in the above virtual display panel provided in the embodiment of the present invention, when the right-angle prisms are used to implement the function of the light directing structure 200, the number of physical pixels in the collimated light display structure 100 and the number of right-angle prisms in the light directing structure 200 need to be determined according to the number of virtual pixels to be displayed. Moreover, in order to ensure that the virtual image viewed by human eyes is shifted backward with respect to the actual image displayed by the collimated light display structure 100, that is, the virtual image is located behind the actual image and on the light incident side of the collimated light display structure, so as to achieve the stereoscopic visual effect of the near-eye flat virtual display, the number of physical pixels needs to be greater than the number of virtual pixels, and generally, every at least two physical pixels included in the collimated light display structure 100 constitute the display content of one virtual pixel. In particular implementations, the physical pixels (i.e., the actual pixels in the collimated display structure) are typically 2 or 3 or more times larger than the virtual pixels (i.e., the virtual pixels that make up the virtual image). Fig. 6 shows a configuration in which two physical pixels constitute display content of one virtual pixel (indicated by a leftmost dashed line box in fig. 6). It is to be noted that, for the sake of visual illustration, physical pixels are not specifically shown in fig. 6, but each of the right-angle prisms constituting the light directing structure 200 is shown, and one right-angle prism corresponds to one physical pixel, so that, for the convenience of understanding, the right-angle prisms may be identical to the physical pixels in fig. 6.
In a specific implementation, a plurality of physical pixels constituting the display content of one virtual pixel may be adjacent to each other in the collimated light display structure 100, or the physical pixels may be set at intervals, which is determined according to the content and the display structure to be displayed, and is not limited herein.
In particular, in order to enhance the sense of silence of the virtual display, it is desirable that the minimum viewing distance from the viewer to the display panel be as small as possible. From the display principle architecture diagram as shown in fig. 6, the following geometrical relationships can be determined:finishing to obtain:
wherein s is the minimum viewing distance from the human eye to the display panel, L is the distance from the virtual image to the human eye, D is the distance between two virtual pixels, and D is the diameter of the pupil of the human eye.
From the display principle architecture diagram shown in fig. 6, it can be determined that the pixel size p values in the collimated light display structure 100 satisfy the following geometrical relationship:finishing to obtain:wherein x is the actual distance from the display panel to the human eyes.
From the above analysis, the minimum viewing distance s from the human eye to the display panel is related to L and d. Therefore, there are two methods for reducing s, one is to reduce L, but L cannot be reduced to less than the near point distance of human eyes, i.e., the minimum distance at which human eyes can clearly image by auto-focusing; the other is to increase d, but the larger the value of d, the rougher the virtual image display. Therefore, it is necessary to select an appropriate value by comprehensive consideration.
As can be seen from the above analysis, in order to present a virtual image with good image quality in the virtual display panel provided in the embodiment of the present invention, it is preferable that, as shown in fig. 7, the display content of one virtual pixel is configured by every three physical pixels arranged in a delta shape, for example, the display content of one virtual pixel is configured by three physical pixels indicated by a dashed line frame in fig. 7. It should be noted that fig. 7 is only a schematic illustration, and three physical pixels arranged in a delta shape may be adjacent to each other, or may be set at intervals, which is not limited herein.
Based on the same inventive concept, an embodiment of the present invention further provides a display device, including the virtual display panel provided in the embodiment of the present invention, where the display device may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like. The implementation of the display device can be referred to the above embodiments of the virtual display panel, and repeated descriptions are omitted.
The virtual display panel and the display device provided by the embodiment of the invention comprise: the collimated light display structure is arranged on the light emitting surface of the collimated light display structure. The display area of the collimated light display structure is divided into: a first display region for displaying a left-eye received image, and a second display region for displaying a right-eye received image; collimated light beams emitted from the first display area are directionally deflected by the light directing structure and then are emitted to a preset left eye viewing position, so that a virtual image presented on a left eye is positioned on the light incident side of the collimated light display structure; the collimated light beams emitted from the second display area are directionally deflected by the light directing structure and then are emitted to a preset right eye viewing position, so that a virtual image presented to the right eye is positioned on the light incident side of the collimated light display structure. The light pointing structure can accurately control the light beam to point to the set eye position, and the virtual image seen by the eyes moves backwards relative to the actual image displayed by the collimated light display structure, so that the virtual images respectively seen by the two eyes are fused in the brain under the condition that the eyes are close to the collimated light display structure, and the stereoscopic vision effect of near-eye flat plate virtual display is realized. In addition, the light direction structure arranged on the light emergent surface of the collimated light display structure is adopted to replace the prior thick positive lens structure to realize virtual display, so that the whole virtual display panel is favorably thinned.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (12)
1. A virtual display panel, comprising: the collimated light display structure is arranged on the light emitting surface of the collimated light display structure; wherein,
the display area of the collimated light display structure is divided into: a first display region for displaying a left-eye received image, and a second display region for displaying a right-eye received image;
the part of the light directing structure corresponding to the first display area is used for directionally deflecting the collimated light beams emitted by the first display area and then directing the collimated light beams to a preset left eye viewing position, so that a virtual image presented on a left eye is positioned on the light incident side of the collimated light display structure;
the part of the light directing structure corresponding to the second display area is used for directionally deflecting the collimated light beams emitted by the second display area and then directing the collimated light beams to a preset right eye viewing position, so that a virtual image presented to the right eye is positioned on the light incident side of the collimated light display structure.
2. The virtual display panel of claim 1, wherein each at least two physical pixels included in the collimated light display structure constitutes the display content of one virtual pixel.
3. The virtual display panel of claim 2, wherein every third physical pixel arranged in a delta shape constitutes the display content of one virtual pixel.
4. The virtual display panel of claim 2, wherein the light directing structure is formed by a plurality of right angle prisms arranged in an array, and wherein one of the physical pixels corresponds to at least one of the right angle prisms, and wherein a right angle edge of each of the right angle prisms is in contact with the light exit surface of the collimating light displaying structure.
5. The virtual display panel of claim 4, wherein the slope angle of each right-angle prism satisfies the following formula α ═ θ2-θ1，nsinθ1＝sinθ2；
Wherein, theta1The included angle between the plane where the hypotenuse of the right-angle prism is located and the light-emitting surface of the collimated light display structure is α, the angle of the collimated light beam is in directional deflection, and theta2The included angle is formed between the collimated light beam passing through the plane where the hypotenuse of the right-angle prism is located and the normal line of the plane where the hypotenuse of the right-angle prism is located.
6. The virtual display panel of any of claims 1-5, wherein the collimated light display structure comprises: the light adjusting structure comprises a collimation backlight source and a light adjusting structure arranged on the light emitting side of the collimation backlight source.
7. The virtual display panel of claim 6, wherein collimated light from the collimated backlight is incident perpendicular to the plane of the light-modulating structure.
8. The virtual display panel of claim 6, wherein the light modulating structure is a liquid crystal display panel.
9. The virtual display panel of any of claims 1-5, wherein the collimated light display structure comprises: the plane display panel, and set up in the collimation structure of plane display panel light-emitting side, the collimation structure be used for with the light collimation that plane display panel sent.
10. The virtual display panel of claim 9, wherein the collimating structure emits collimated light perpendicular to a plane of the flat display panel.
11. The virtual display panel of claim 9, wherein the flat display panel is any one of an electroluminescent display panel, a plasma display panel, or electronic paper.
12. A display device comprising the virtual display panel according to any one of claims 1 to 11.
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| CN201610930981.9A CN106291959B (en) | 2016-10-31 | 2016-10-31 | A kind of virtual display panel and display device |
| US15/679,026 US10534192B2 (en) | 2016-10-31 | 2017-08-16 | Stereo display panel and display device having the stereo display panel |
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| CN201610930981.9A CN106291959B (en) | 2016-10-31 | 2016-10-31 | A kind of virtual display panel and display device |
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| CN106291959B (en) | 2018-02-27 |
| US20180120576A1 (en) | 2018-05-03 |
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